1. Cut the thin membrane from the back of the ribs.
2. Pat the ribs dry with paper towel.
3. Cover the front and back of each rack of ribs with the dry rub.
4. Preheat the Traeger to 165 degrees F.
5. Place the ribs on the bottom grill grate.
6. Smoke for 2 hours.
7. At the 2 hour mark, open the smoker, wrap each rack of ribs in aluminium foil and place back on the grill.
8. Smoke ribs for 2 more hours at 225 degrees F.
9. At the four hour mark, remove the ribs from the foil, place back on the grill and baste with BBQ sauce.
10. Continue to flip and baste the ribs at 15 minute intervals for one additional hour.
11. After a total cook time of five hours, remove the ribs from the grill and cut into pieces.